Artificial teeth.



Aast: i [Jaye/2601 M. LINARES.

ARTIFICIAL TEETH.

APPLICATION FILED MAR. 16. 1915.

1,184,187. V Patented'May 23,1916.-

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I/IIenEL LINARES, OF'ALCOY, SPAIN.

ARTIFICIAL TEETH.

To all whom it may concern:

Be it known that I, MIGUEL LINARES, a subject of the King of Spain,residing in the city of Alcoy, Province of Alicante, Spain, haveinvented certain new and useful Improvements in Artificial Teeth, ofwhich th following is a specification.

This invention relates to improvements in artificial dentures of thekind having a small seating or support. The hygienic benefits of a smallseating are obvious, and the wearer would find it more comfortable if itcould be held in position as securely as a large seating.

The object of thefpresent invention is to provide improved means forholding such a denture satisfactorily in position by suction.

The invention comprises an'artificial clentur provided witha movablepiston adapted when pressed to expel air from between the seating of thedenture andthe gum on which it'rests. located in place of one of theartificial teeth.

A construction according to this invention is illustrated in theaccompanying drawing in which:

Figure 1 is a perspective view of the suction side of an upper denture;Fig. 2 is a perspective upper view of a lower denture; Fig. 3 is asection on an enlarged scale through the line 3, 3, in Fig. 1, and Fig.1 is a section on an enlarged scale through the line 4, a, in Fig. .1.

Both the upper and the lower dentures comprise 14 teeth, 12 of porcelainand two piston crowns at, J which latter form the suction devices, eachacting, through a hole J which opens on tothe suction surface of theseating H. 40;

Referring to Figs. 3. and 4, A is a piston preferably about 0.4 mmathickadapted to slide in the casing B mounted in the seating H and held inthe usual manner by roughening the outer surface or by providingprojections to engage the seating material. Secured within the pistonare two strips of metal E which pass freely through a support O mountedin the seating H as shown in Fig.

3, the strips E being bent over at the ends to prevent the piston frombeing forced out of Specification of Letters Patent. 7

Application filed March 16, 1915. Serial No. 14,650.

The movable piston can be Patented May 23, 1916.

the casing B by the spring D which holds the piston normally in itsouter position. The parts gold, platinum, iridium platinum alloy, orother suitable metal. The head of the piston serves as the entire crown.When the mouth is closed for mastication or articulation, the spring iscompressed because the piston crowns engage the opposite denture, andthus the air is expelled from between the seating and the gum on whichit rests, there by producing suction when the spring ex pands. Thestroke of the piston is approximately 5 to 1 mm. but of course this maybe varied- It will be seen that the position of the molars on each side,corresponds with the vacuum chamber of oval shape where the A, B, C, I),E, may be of 18 carat suction device acts. Any one of the four molarssituated at each side of the denture can be used for the suction device.

What I claim is:

1. In an artificial denture, a seating to engage the tissue of the mouthand provided with an air passage extending through from the suctionsurface of the seating to'the opposite face of the denture, and asuction device located in the air passage and adapted when pressed toexpel air from between the seating of the denture and the tissue onwhich it rests.

2. In an artificial denture, a seating to engage the tissue ofthe mouthand provided with an air passage, and a piston crown located in the airpassage in the position molar tooth and adapted when pressed to exofapel air from between the seating of the dengage the tissue of the mouthand provided with an air passage, a piston and lining located in the airpassage inthe position of a molar tooth and adapted when pressed toexpel air from between the seating of the denture and the tissue onwhich it rests, and a spring to normally hold the piston in its outerposition.

4:. In an artificial denture, a seating to engage the tissue of themouth and provided with an air passage, a cylindrical lining in saidpassage in the position of a molar, a

2 t r '1,184,1s7

piston located in said lining and adapted to name totliis specificationin the presenoe of serve as'an entire molar crown, an abuttwosubscribing Witnesses. V

ment in thelining, and a spring under 001m 1 7 MIGUEL LINARES CANTO.pression between the piston and the abut- Witnesses: g r 5 ment, for thepurpose set fortQ. V 7 CONSL.'B;; 'FERQL; In testimony whereof I havesigned my Y Y ANToNIo' SLAVINA;

Copies '01 this patent may be qptgineg for five gents geek, by ggidregiggihe (Commissioner of Patent;

7 V i Washington, D. 0. V

